Orthogonal Experimental Study on Creep Aging Behavior of 7055T7751 Aluminum Alloy

SHI Jianmeng; LI Binliang; ZHANG Haibao

doi:10.16080/j.issn1671-833x.2021.12.080

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Orthogonal Experimental Study on Creep Aging Behavior of 7055T7751 Aluminum Alloy

更新时间：2025-10-30

- Orthogonal Experimental Study on Creep Aging Behavior of 7055T7751 Aluminum Alloy
- Aeronautical Manufacturing Technology Vol. 64, Issue 12, Pages: 80-84(2021)
- 作者机构：
  
  中航西安飞机工业集团股份有限公司,西安,710089
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2021.12.080
  CLC：
- Published：2021
- 稿件说明：
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史建猛，李宾良，张海宝. 基于正交试验法的 7055T7751 铝合金时效蠕变性能研究[J]. 航空制造技术, 2021, 64(12): 80-84.

SHI Jianmeng, LI Binliang, ZHANG Haibao. Orthogonal Experimental Study on Creep Aging Behavior of 7055T7751 Aluminum Alloy. 航空制造技术, 2021, 64(12): 80-84.
史建猛，李宾良，张海宝. 基于正交试验法的 7055T7751 铝合金时效蠕变性能研究[J]. 航空制造技术, 2021, 64(12): 80-84. DOI： 10.16080/j.issn1671-833x.2021.12.080.

SHI Jianmeng, LI Binliang, ZHANG Haibao. Orthogonal Experimental Study on Creep Aging Behavior of 7055T7751 Aluminum Alloy. 航空制造技术, 2021, 64(12): 80-84. DOI： 10.16080/j.issn1671-833x.2021.12.080.

摘要

基于正交试验方法设计了 7055T7751 铝合金的单向拉伸时效蠕变试验，应用正交多项式回归方法对试验结果进行分析，得到了 7055T7751 铝合金经时效蠕变后的屈服强度与预应力、时效温度和时效时间的经验公式，并分析了上述 3 个工艺参数对 7055T7751 铝合金经蠕变后的屈服强度的影响规律。

Abstract

This paper presents an orthogonal experimental design on the creep aging test for 7055T7751 aluminum alloy by uniaxial stretch. An empirical formula on calculating the yield strength from the prestress

aging temperature and aging duration after creep aging is obtained by analyzing the experimental results using the orthogonal polynomial regression method. In addition

the effects of the three process parameters on the yield strength of 7055T7751 aluminum alloy after creep aging are investigated

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